Mental work and Provigil
Forty-one military subjects received either 300 mg of Provigil Generic, 20 mg of d-amphetamine, or placebo on 3 separate occasions during 64 hours of continuous cognitive work and sleep loss. Three drug treatments were given: at 23.30 hours and 05.30 hours during the first and second SD nights, respectively, and once at 15.30 hours during the third day of continuous work.
Subjective estimates of mood, fatigue and sleepiness, as well as objective measures of reaction time, logical reasoning and short-term memory clearly showed better performance with both Provigil Generic and amphetamine relative to placebo. Both Provigil Generic and amphetamine maintained or increased body temperature compared to the natural circadian cycle observed in the placebo group. Also, from subject debriefs at the end of the study, Provigil Generic elicited fewer side-effects than amphetamine, although more than the placebo group.
Provigil – Wakefulness in Rats increased
We found that after a single icv injection of MOD (10mug/5mul) the extracellular levels of dopamine (DA) and l-DOPA collected from the nucleus accumbens were increased and decreased, respectively. Separately, the icv administration of MOD (10mug/5mul) to rats enhanced wakefulness (W) whereas diminished sleep during 4h.
Lastly, the alertness induced by MOD was partially antagonized by the sleep-inducing endocannabinoid anandamide (ANA). We conclude that MOD enhances the extracellular levels of DA, promotes W and its effects on sleep are partially blocked by ANA.